Introduction

Meziantou.Framework.Barcodes generates QR codes and linear barcodes in .NET, and renders them as SVG, as PNG files, or as text for a terminal. It is written entirely in C# and has no native dependency. Meziantou.Framework.Imaging.Barcodes adds the rendering to the images of Meziantou.Framework.Imaging: any image format, and drawing on existing images.

What you can do with it

• Generate QR codes of three kinds: standard QR codes, Micro QR codes for very small spaces, and rectangular Micro QR codes (rMQR) for narrow ones. The version, the encoding and the mask are chosen for you. See QR codes.
• Generate linear barcodes: Code 39, Code 93, Code 128, GS1-128, EAN-8, EAN-13, UPC-A (with their 2- or 5-digit add-ons), Codabar and Interleaved 2 of 5. Check digits are computed or checked. See Linear barcodes.
• Build the content of QR codes that phones understand: Wi-Fi networks, contacts, events, payments, two-factor authentication. See QR code content.
• Render as SVG or PNG with your colors and sizes, or as text in a terminal. See SVG and PNG and Terminal output.
• Draw on images with any brush, and print the human-readable text under a barcode with the bundled OCR-A and OCR-B fonts. See Images.

The packages generate symbols; they do not read them from photos or scans. See Limitations.

Packages and namespaces

Meziantou.Framework.Barcodes writes PNG files on its own. Add Meziantou.Framework.Imaging.Barcodes only when you need another format, effects such as gradients, or to draw a code on an existing image.

Next steps

• Getting started: install the package and generate your first QR code and barcode.